Keiichi Nakata - Academia.edu (original) (raw)

Papers by Keiichi Nakata

Context provides computing environments with the ability to adapt the information they provide by... more Context provides computing environments with the ability to adapt the information they provide by implicitly deriving the user's requirements from the context that surrounds the user at any situation. While considerable work has been carried out on the application of context, the meaning of context is often misinterpreted and poorly defined. Most of the attempts to use context have centred on the physical elements of the environment, users, or devices. However, only a little work has put emphasis on the context of the interaction itself. Accordingly, it is believed that it is necessary to incorporate context in the interaction design process as it becomes more important in interactive systems. This thesis proposes a method for designing interactive systems, where the dynamic changes in contexts and normative activities are captured and specified in the form of a formal language, called Context-based Activity Specified Language (CASL). The Context-based Activity Design (CoB AD) method is aimed at enabling a systematic design that assists or guides researchers and system designers in the field of interactive systems design to put emphasis on the context of the system use and its interaction. This method is built on three key components, namely the Context Ontology Model (COM), context reasoning mechanisms and specification of information fields. It also consists of the Context State Transition (CST) model that represents the transitions of activity states, where the ordering of activity states is often dependent on the context reasoning rules. One possible way to resolve such a conflict in context reasoning is to incorporate the concepts of norms and information fields, borrowed from Organisational Semiotics. This offers a novel method for designing interactive systems that is capable of modelling information fields as a set of norms. This generates different sets of outcomes depending on the different set of norms applied, which is useful for designing interactive systems. A series of conflict resolution strategies is proposed in this study, which mainly differ in the type and preference context that are used to resolve potential conflicts in the overlapping information fields . The CoB AD method is demonstrated by applying it into three different scenarios: (1) the activity design in a smart home, (2) the citizen lifecycle design and (3) the workaround design in a healthcare design work process. The method of treating conflicting norms in multiple information fields is presented in detail. Finally, the conclusions, contributions and future work identified from this study are expected to benefit researchers. - See more at: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602416#sthash.7CRikrfD.dpuf

Aligning information systems (IS) solutions with business goals and needs are crucial for IS acti... more Aligning information systems (IS) solutions with business goals and needs are crucial for IS activities. IS professionals who are able to work closely with both the business and technical staff are key enablers of business and IT alignment. IS programs in higher education (HE) institutions have a long tradition of enabling graduates to develop the appropriate skills needed for their future careers. Yet, organizations are still having difficulty finding graduates who possess both the knowledge and skills that are best suited to their specific requirements. Prior studies suggest that IS curricula are often ill-matched with industry/business needs. This study reports on the business analysis curricula (re) design which was undertaken to align it with a key professional body for the IS industry. This study presents the approaches taken in the (re) design of the module, and provides a discussion of the wider implications for IS curricula design. The results show a positive outcome for th...

1 Abstract—The building of exhaustive ontologies leads to well known problems such as terminology... more 1 Abstract—The building of exhaustive ontologies leads to well known problems such as terminology, scope, encoding and context, which can only be resolved in a process of intense communication of the potential users. We propose an environment that enables users to define rules, parameters, constraints for an agent-based system which sustains (self-) organization of small sets of concepts extracted from a specific set of user provided documents and their relations. The system allows users to build or train agents, which carry small ontologies together with specific sample documents, and a generic set of rules, which enables the agents to negotiate their local ontological relations with each other.

Information Systems (IS) programs in Higher Education (HE) institutions have a long tradition of ... more Information Systems (IS) programs in Higher Education (HE) institutions have a long tradition of enabling graduates to develop the appropriate skills needed for their future careers. Nevertheless, previous studies suggest that IS curricula are not always wellaligned with industry/business needs. At the same time, universities increasingly have to deal with issues concerning the quality of their degrees and whether students earning the degrees obtain high-quality employment with good employers. This study thus sets out to achieve two objectives: 1) to better re-align the IS programs with business needs/standard work practice and 2) to provide students with an opportunity to earn a professional practitioner certification prior to their graduation. We present an approach to, and an example of, aligning a Master’s Business Analysis curriculum with practitioner certification of a key professional body for the IS industry. The approach to alignment was grounded by theory in teaching and l...

Socially Aware Organisations and Technologies. Impact and Challenges, 2016

Compliance is an important aspect of operational requirements, and is essential to have a system ... more Compliance is an important aspect of operational requirements, and is essential to have a system that allows for compliance to be monitored, managed and improved. However, why non-compliance occurs in organisations is not always well understood. This paper proposes that the semiotic approach can aid in making sense of non-compliance behaviour by analysis of the actions of the agents. In particular, the organisational containment analysis highlights the division between informal and formal treatment of compliance. It also indicates that the established norms which are as a result of rules, regulations, beliefs and other patterns can influence behaviour. The paper proposes that these norms and patterns constitute the culture and beliefs of the organisation and determines how the agents embrace rules and regulations. An example of analysing compliance using the semiotic approach is presented using a case study of non-compliance to the quality management system at NHS Blood and Transplant (NHSBT).

11th IFAC,IFIP,IFORS,IEA Symposium on Analysis, Design, and Evaluation of Human-Machine Systems (2010), 2010

Page 1. A Descriptive Model for Arabic-English Cross-Lingual Tagging Mariam Ahmed Mustafa Elhusse... more Page 1. A Descriptive Model for Arabic-English Cross-Lingual Tagging Mariam Ahmed Mustafa Elhussein University Reading, UK mamelhussein@pgr.reading.ac.uk ... 2. Define “what it is”: they identify the type of content: 'picture', 'book', 'blog', etc. ...

IFIP Advances in Information and Communication Technology, 2016

IFIP Advances in Information and Communication Technology

Compliance is important for organisations but models and tools to aid understanding of compliance... more Compliance is important for organisations but models and tools to aid understanding of compliance behaviour is limited. This paper argues that the understanding of the interaction between subjects and objects and their intention to comply with requirements of rules and regulations may be a predictor of compliance behaviour. Thus, a Conceptual Compliance Assessment Model (CAM) is developed by extension of Technology Acceptance Model and Activity theory for assessment of compliance behaviour. Data collected and evaluated showed that the awareness and understanding of the mediational tool is critical in realizing the outcome. It also showed that other factors like the perceived usefulness, perceived ease of use, the community and the management set up also affected compliance behaviour. Essentially, the use of CAM will be useful in assessing the compliance activities of subjects which may aid in formulation of behaviour support systems to improve compliance behaviour.

Journal of Ambient Intelligence and Smart Environments

Recent advances in ubiquitous computing are turning our environments into smart spaces, where tec... more Recent advances in ubiquitous computing are turning our environments into smart spaces, where technology is embedded into the physical environment. Significant levels of data must be constantly and ubiquitously collected to provide much of the new functionality; a process we refer to as ubiquitous monitoring. Existing research has shown that monitoring can often cause undesirable effects, such as increases in stress, and with the increased coverage of ubiquitous monitoring, we anticipate an increase in the impact of such effects. So far, a limited amount of research has investigated the impact of this new technology on users. As such, we propose a preliminary model consisting of a series of factors believed to influence user/occupant behaviour and augmented by the Theory of Planned Behaviour for explaining and potentially predicting any undesirable effects. As the model has the characteristic of system dynamics, a preliminary (proof of concept) simulation was carried out to examine the influence of each factor on one another, both directly and indirectly.

IEE Colloquium on Thinking with Diagrams

人工知能学会全国大会論文集 Proceedings of the Annual Conference of Jsai, Jul 24, 1995

Proceedings of the 30th European Conference, Aug 28, 2012

ABSTRACT

The semiotic approach to information systems development has proved over the years as a reliable ... more The semiotic approach to information systems development has proved over the years as a reliable framework for analyses, and it has been mainly focused on the development of organizational information systems. However, the usefulness of the approach extends beyond the organizational context to other areas of systems development. This paper presents a semiotic analysis of persuasive technologies, leading to the design and implementation of a system for obesity management.